Introductory Physics Homework Help Forum

Post thread
Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
What is the Image Height for a Converging Lens and Diverging Lens System?
  • · Replies 12 ·
Replies
12
Views
174K
Problem regarding refraction of light question
  • · Replies 6 ·
Replies
6
Views
2K
Calculating the lifetime of a particle
  • · Replies 1 ·
Replies
1
Views
6K
Max EMF in a Model AC Generator Coil
  • · Replies 3 ·
Replies
3
Views
13K
Momentum of golf ball and basketball
  • · Replies 9 ·
Replies
9
Views
8K
Work Required for Adiabatic Compression
  • · Replies 6 ·
Replies
6
Views
10K
Mechanic about wood block, friction and pulley
  • · Replies 1 ·
Replies
1
Views
2K
Mechanism that causes tension and normal force?
  • · Replies 3 ·
Replies
3
Views
3K
Which Formulas Solve These Physics Problems?
  • · Replies 1 ·
Replies
1
Views
2K
What Is the Angle Between Velocity Vector and Radius-Vector of Part A at 4RE?
  • · Replies 3 ·
Replies
3
Views
1K
Please help with formulas for take home test due tomorrow.
  • · Replies 1 ·
Replies
1
Views
2K
Weight Distribution: Solving for Tension in a Hawser System
  • · Replies 4 ·
Replies
4
Views
2K
Need help on an object acceleration homework problem
  • · Replies 7 ·
Replies
7
Views
2K
A sled is being pulled accross horizontal, snow covered ground
  • · Replies 5 ·
Replies
5
Views
11K
Time and height in a freefall problem
  • · Replies 12 ·
Replies
12
Views
2K
How Do You Solve Orbital Mechanics Problems Involving Central Forces?
  • · Replies 1 ·
Replies
1
Views
2K
Forces of a wrecking ball against a wall at rest.
  • · Replies 3 ·
Replies
3
Views
5K
Calculating Time Dilation at Half the Speed of Light
  • · Replies 7 ·
Replies
7
Views
10K
Finding kinetic energy after an elastic collision
  • · Replies 6 ·
Replies
6
Views
7K
How Do You Solve a Modified Atwood Machine Problem?
  • · Replies 1 ·
Replies
1
Views
2K
How Do You Determine the Direction of Rotation Using the Right-Hand Rule?
  • · Replies 3 ·
Replies
3
Views
2K
What happens to the speed of charge carriers when going through a resistor
  • · Replies 12 ·
Replies
12
Views
21K
Find acceleration vector of a car travelling on a circular path
  • · Replies 2 ·
Replies
2
Views
5K
Non-Uniform Distribution of Charge on a Rod
  • · Replies 1 ·
Replies
1
Views
3K
Magnitude and angle of particle direction-
  • · Replies 1 ·
Replies
1
Views
3K
Velocities and momentum after explosions
  • · Replies 1 ·
Replies
1
Views
3K
Atoms of Julius Caesar in a Caesar Salad (seriously)
  • · Replies 1 ·
Replies
1
Views
2K
Inelastic Collision: Threshold Energy
  • · Replies 2 ·
Replies
2
Views
6K
Why Is My Calculated Velocity at the Swing's Apex Incorrect?
  • · Replies 3 ·
Replies
3
Views
2K
How Far Will a Cart Roll on Sand and Gravel? | Work/Energy Question
  • · Replies 1 ·
Replies
1
Views
6K
Conservative forces and Mechanical Energy
  • · Replies 1 ·
Replies
1
Views
5K
Tension of strings at different angles:
  • · Replies 7 ·
Replies
7
Views
36K
Pottery wheel, angular acceleration, and required speed
  • · Replies 1 ·
Replies
1
Views
3K
Solving Power Equation: Melting an Ice Cube
  • · Replies 4 ·
Replies
4
Views
6K
Kinetic and Potential Energy with acceleration
  • · Replies 1 ·
Replies
1
Views
2K
How Does Centrifugal Force Compare to Gravity in Car Cornering Dynamics?
  • · Replies 10 ·
Replies
10
Views
5K
Grade 11 Physics, Need resources
  • · Replies 4 ·
Replies
4
Views
2K
Solve Kinematic Equations for Automobile Braking
  • · Replies 2 ·
Replies
2
Views
5K
Determining Orbital Period of a Planet
  • · Replies 3 ·
Replies
3
Views
3K
Kinematic Equations (Constant Acceleration)
  • · Replies 1 ·
Replies
1
Views
2K
Given Maximum Acceleration calculate angle θ where Fnet=0
  • · Replies 3 ·
Replies
3
Views
4K
Tension in of string between two boxes with friction.
  • · Replies 4 ·
Replies
4
Views
18K
Calculating Work Done by Friction in a Circular Track
  • · Replies 2 ·
Replies
2
Views
11K
Rank the velocities of the balls
  • · Replies 3 ·
Replies
3
Views
3K
Calculate Change in Momentum of 4.8 kg Mass Launched at 55°
  • · Replies 6 ·
Replies
6
Views
3K
I really appreciate the help.Finding Force in Nonuniform Circular Motion
  • · Replies 34 ·
2
Replies
34
Views
4K
Two Blocks Connected by a Massless String Over a Pulley
  • · Replies 1 ·
Replies
1
Views
7K
Find B given distance and direction from vector A
  • · Replies 7 ·
Replies
7
Views
2K
Electrostatics questions, parallel plates, force, field
  • · Replies 6 ·
Replies
6
Views
3K
LIL 5 year old boy falling a 50 feet to another persons arms
  • · Replies 17 ·
Replies
17
Views
3K
Tension and ball of mass problem
  • · Replies 26 ·
Replies
26
Views
3K
Solving Work Needed to Pull Chain On Frictionless Table
  • · Replies 17 ·
Replies
17
Views
3K
Determining the speed of the bullet after a collision
  • · Replies 2 ·
Replies
2
Views
2K
Calculating area of a parallelogram defined by 2 vectors
  • · Replies 3 ·
Replies
3
Views
3K
Solving Plank Pivot Homework: Force Magnitude & Direction
  • · Replies 1 ·
Replies
1
Views
2K
What is the least amount of force needed to pull a board out from under a box?
  • · Replies 1 ·
Replies
1
Views
3K
Explosion of firecracker on pond
  • · Replies 10 ·
Replies
10
Views
4K
Thermodynamics/ideal gas question
  • · Replies 7 ·
Replies
7
Views
3K
Conservation of angular momentum axis
  • · Replies 2 ·
Replies
2
Views
2K
Torque on a current carrying coil with an applied frictional force?
  • · Replies 1 ·
Replies
1
Views
3K
A ball being shot from level ground with a twist
  • · Replies 1 ·
Replies
1
Views
4K
Calculating Current using Kirkoff's Rules
  • · Replies 7 ·
Replies
7
Views
2K
Projectile Motion Help: Solving Cannon Ball Problems
  • · Replies 1 ·
Replies
1
Views
2K
Solve Shear Force & Moment Equation Homework
  • · Replies 1 ·
Replies
1
Views
2K
Pressure Gradient in Hydrostatic Equilibrium
  • · Replies 2 ·
Replies
2
Views
2K
Conical Pendulum, find tension, radial force, speed, period, and angular speed
  • · Replies 1 ·
Replies
1
Views
21K
A pair of perpendicular vectors
  • · Replies 3 ·
Replies
3
Views
7K
Trucks travels beneath an airplane .
  • · Replies 3 ·
Replies
3
Views
3K
Out of 2 oscillators, which one decays to .1A first?
  • · Replies 3 ·
Replies
3
Views
2K
Lenz's law for point charge in time varying magnetic field?
  • · Replies 1 ·
Replies
1
Views
2K
A Person in Free Fall Newton's 2nd Law
  • · Replies 1 ·
Replies
1
Views
2K
Finding Energy Given Mass and Height
  • · Replies 7 ·
Replies
7
Views
2K
Elevator Tension With Upward Acceleration
  • · Replies 5 ·
Replies
5
Views
5K
Proportional ratios with exponents - Need Help
  • · Replies 3 ·
Replies
3
Views
4K
Collision with 3 particles and inelastic string
  • · Replies 5 ·
Replies
5
Views
2K
How Does a Fly Impact the Speed of a Moving Car?
  • · Replies 3 ·
Replies
3
Views
3K
Symbols in the equation relating work, force, and distance moved
  • · Replies 3 ·
Replies
3
Views
4K
Need help with solving for t value and plugging back into equation?
  • · Replies 1 ·
Replies
1
Views
2K
Source of deformation on Spinning oblect
  • · Replies 1 ·
Replies
1
Views
1K
Calculating acceleration of a plane weighing 9800N
  • · Replies 1 ·
Replies
1
Views
2K
How Is the Mass of Each Hailstone Calculated?
  • · Replies 3 ·
Replies
3
Views
6K
Rocks falling at the same time and their distance apart
  • · Replies 9 ·
Replies
9
Views
2K
Finding the Net Charge of the Earth
  • · Replies 5 ·
Replies
5
Views
18K
Please determine the directions of currents
  • · Replies 2 ·
Replies
2
Views
4K
Impulse and Momentum, their unit and relationship
  • · Replies 2 ·
Replies
2
Views
14K
What are the forces at play in Sally's car rescue scenario?
  • · Replies 1 ·
Replies
1
Views
2K
Finding the angle at which a box starts to slide down a ramp
  • · Replies 5 ·
Replies
5
Views
42K
Is it possible to solve for kinetic friction without given theta?
  • · Replies 9 ·
Replies
9
Views
3K
Why Does a Shuttle Need to Be in a Circular Orbit for Apparent Weightlessness?
  • · Replies 2 ·
Replies
2
Views
2K
Minimum speed required for charge collision
  • · Replies 5 ·
Replies
5
Views
3K
Difference between F=kx and F=-kx
  • · Replies 3 ·
Replies
3
Views
17K
Combination of freefalling and constant horizontal movement
  • · Replies 12 ·
Replies
12
Views
2K
Solving an RC Circuit: Find Time to Reach 65% of Max Value
  • · Replies 1 ·
Replies
1
Views
10K
How Does Friction Affect Motion in AP Physics Problems?
  • · Replies 1 ·
Replies
1
Views
2K
Frictional charging and weight of the body involved
  • · Replies 1 ·
Replies
1
Views
4K
Solving the Capacitor Charging Problem
  • · Replies 1 ·
Replies
1
Views
1K
Power generated by water flowing over a dam
  • · Replies 2 ·
Replies
2
Views
4K
What Is the Net Force on the Middle Mass?
  • · Replies 12 ·
Replies
12
Views
21K
Moment of a Distributed Load on Beam, Scanned work and Diagram.
  • · Replies 2 ·
Replies
2
Views
2K
Is the Work Done by the Electric Field Positive or Negative?
  • · Replies 2 ·
Replies
2
Views
3K